JPS56150990A - Brushless direct current motor - Google Patents
Brushless direct current motorInfo
- Publication number
- JPS56150990A JPS56150990A JP5492880A JP5492880A JPS56150990A JP S56150990 A JPS56150990 A JP S56150990A JP 5492880 A JP5492880 A JP 5492880A JP 5492880 A JP5492880 A JP 5492880A JP S56150990 A JPS56150990 A JP S56150990A
- Authority
- JP
- Japan
- Prior art keywords
- over
- coils
- conduction
- capacitors
- positional detecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
Abstract
PURPOSE:To inhibit spiky voltage in case of the change-over of the conduction of coils by a method wherein the terminal voltage of a plurality of capacitors charging and discharging electricity in response to a plurality of positional detecting signals and fixed voltage are compared through a plurality of differential circuits, and the conduction of the coils is changed over. CONSTITUTION:A circuit which changes over and controls motor coils A-D is formed by a positional detecting signal generating section 12 containing two Hall elements 4, 5, which have the phase difference of 90 deg. electrically, and a conduction change-over section 13. The conduction change-over section 13 has charging and discharging switch sections 23, 27 corresponding to positional detecting signals V1, V2 to control the charging and discharging of capacitors 28, 29, and changes over and controls the stator coils A-D through differential circuits 42, 45, 48. Thus, since the capacitors 28, 29 are slowly charged and discharged as time goes by current sources 21, 20 and 25, 26 with the positional detecting signals, the motor coils are smoothly changed over, and the variation of currents and noises due to inductance voltage can be prevented effectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5492880A JPS56150990A (en) | 1980-04-24 | 1980-04-24 | Brushless direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5492880A JPS56150990A (en) | 1980-04-24 | 1980-04-24 | Brushless direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56150990A true JPS56150990A (en) | 1981-11-21 |
Family
ID=12984275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5492880A Pending JPS56150990A (en) | 1980-04-24 | 1980-04-24 | Brushless direct current motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56150990A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60226788A (en) * | 1984-04-23 | 1985-11-12 | Matsushita Electric Ind Co Ltd | Dc commutatorless motor |
| JPS62236381A (en) * | 1986-03-26 | 1987-10-16 | エスジ−エス ハルブライタ− ‐バウエレメンテ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Controller of brushless dc motor |
-
1980
- 1980-04-24 JP JP5492880A patent/JPS56150990A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60226788A (en) * | 1984-04-23 | 1985-11-12 | Matsushita Electric Ind Co Ltd | Dc commutatorless motor |
| JPH0732629B2 (en) * | 1984-04-23 | 1995-04-10 | 松下電器産業株式会社 | DC non-commutator motor |
| JPS62236381A (en) * | 1986-03-26 | 1987-10-16 | エスジ−エス ハルブライタ− ‐バウエレメンテ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Controller of brushless dc motor |
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